package ACWing.DataStructure.链表;
//302. 表达式求值

import java.util.Scanner;

/**
 * @author :chenjie
 * @date :Created 2022/12/28 15:45
 */
public class ExpressionEvaluation {
    static char[]stk=new char[100010];
    static int tt;
    public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        String s=sc.nextLine();
        char[] chars = s.toCharArray();
        for (int i = 0; i < chars.length; i++) {
            if(chars[i]==')'){

            }
        }
    }
    public static void push(char chars){
        stk[++tt]=chars;
    }
    public static char pop(){
        char a=stk[tt];
        tt--;
        return a;
    }
    public static char query(){
        return stk[tt];
    }
}
